很多时候,我们在编写软件的时候，都需要在软件外部对其进行配置。利用本文所述技巧，可以实现在外部XML文件中读取软件进行配置，下面不说废话，直接贴出XML和相应解析代码：

XML文件

<System>
    <Server>
        <ServerIP>192.168.1.252</ServerIP>
        <ServerPort>8080</ServerPort>
        <ServerUrl>/xxxx</ServerUrl>
    </Server>
    <RealSize>
        <XLength>2000</XLength>
        <YLength>2000</YLength>
    </RealSize>
    <Coord>
        <Mode>2</Mode>
    </Coord>
</System>

相应脚本

using UnityEngine;
using System.Collections;
using System.Xml;
using System.IO;
public class ParseXML : MonoBehaviour{
    private string serverIP;
    private string serverPort;
    private string serverUrl;
    //实际定位范围
    private string xLength;
    private string yLength;
    //坐标系模式
    private string mode;
    // Use this for initialization
    void Start(){
        string configPath = Application.dataPath;
        int num = configPath.LastIndexOf ("/");
        configPath = configPath.Substring (0,num);
        string url = configPath + "/config/systemconfig.xml";   
        /**
         * 开始解析XML文件 
         */
        XmlDocument xmlDoc = new XmlDocument();   
        xmlDoc.Load (url);
        if(xmlDoc.HasChildNodes){
            /**
             * 获取服务器信息
             */
            XmlNodeList nodeList=xmlDoc.GetElementsByTagName("Server");
            foreach (XmlNode node in nodeList){
                serverIP=node.SelectSingleNode("ServerIP").InnerText;
                serverPort=node.SelectSingleNode("ServerPort").InnerText;
                serverUrl=node.SelectSingleNode("ServerUrl").InnerText;
            }
            nodeList=xmlDoc.GetElementsByTagName("RealSize");
            foreach (XmlNode node in nodeList){
                xLength=node.SelectSingleNode("XLength").InnerText;
                yLength=node.SelectSingleNode("YLength").InnerText;
            }
            nodeList=xmlDoc.GetElementsByTagName("Coord");
            foreach (XmlNode node in nodeList){
                mode=node.SelectSingleNode("Mode").InnerText;
            }
        }   
    }
    public string getServerIP(){
        return serverIP;
    }
    public string getServerPort(){
        return serverPort;
    }
    public string getServerUrl(){
        return serverUrl;
    }
    public string getXLength(){
        return xLength;
    }
    public string getYLength(){
        return yLength;
    }
    public string getMode(){
        return mode;
    }
}